Right-click on the Photo List column header, or on a blank row in the Photo List, and click Photo Options.
Photo List View
Select the actions to perform when you double-click on a photo in the List View.
Select which items of text should be shown when you hover over a photo on the map.
Choose between absolute and relative file paths. Relative paths provide the most flexibility and will not need to be changed
if you move the folder containing the GPX file and the photos, or share the file with a friend. You should only use absolute file paths
if you absolutely have to...